For many who spend eight hours or more everyday sitting at a desk—followed by two or three hours of watching television or playing video games at home—this is bad news. What's worse, it's been shown that regular exercise does little to combat the effects of a sedentary lifestyle.

So what can you do if you work a job that requires you to sit at a desk for hours on end? There are some easy, affordable ways to get moving on a daily basis.

Get a standing desk. By gradually reducing your overall sitting time to less than three hours a day, you'll get those two years back on your life expectancy with very little effort. Your employer might be willing to pay for your new desk (and might be more inclined to do so if you have a note from your physician recommending one). But if you're purchasing one on your own, you might start out with the StandStand, or go big with the Stir Kinetic Desk F1.

Take regular breaks from sitting. Every thirty minutes or so, get moving! Whether you're filling up your water bottle, connecting with a coworker or taking a lap around the building, get your blood pumping and wake up your metabolism.

Take the stairs. Few things get your heart going like climbing a flight of stairs. So on your way to the office in the morning, skip the elevator. If your boss is on another floor, follow up with her or him in person versus on email.

Get a pedometer. Whether it's a clip-on device or a wearable device like a FitBit, knowing how many steps you've taken each day can be good motivation to stay on your feet.

Park near the back. As you run your weekend errands, park at the very back of the parking lot so you'll be forced to walk a bit further than you normally might.

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